package com.design.observer;

import java.lang.annotation.*;

/**
 *观察者注解-表示是该类将会注册到subject
 *
 * @author Zee
 * @version 1.0
 * @date 2021/8/27
 */
@Documented
@Inherited
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface Observer {

}
